2026-05-18T18:50:01.13639Z-53.98418426513672-1.486176371574401910manualconfirmedIAG5.219985777099831mb1Origin/20260518200401.667022.4095Magnitude/20260518200401.667082.4096earthquakeIAGBouvet Island Regionregion nameusp2026jrtecontributorID